asterisk users - Mar 2005 - Size of installations

I have not found anything in the docs on real capacity in terms of number of
people, PRIs or calls per hour.

What is the largest installation of * in use today?  I don't mean
theoretical capacity, but actual installed systems.

I am an old "big iron" call center guy, and used to run several 1,000
seat
call centers.  My current business is growing and I expect to have almost
100 people on staff by the end of the year.  Could * handle this?

John Scully